RepairSmith

MARCH 28, 2024

This system traps and reroutes fuel vapor to the engine, reducing harmful emissions and improving fuel efficiency. What’s the purge valve’s function in the emissions system? The ECU (Electronic Control Unit) opens and closes the canister purge valve to control the vapor flow. What Causes the Purge Valve to Break?

Check Engine Light 52

Check Engine Light Emissions Testing Engineering Mechanic 52

RepairSmith

APRIL 25, 2024

It prevents fuel vapor from escaping into the atmosphere via the fuel tank or fuel system and directs it to the engine to burn off. The Electronic Control Module (ECM) regularly runs a leak test within the EVAP system using the fuel tank pressure sensor. A smoke test uses a smoke machine to find hard-to-detect fuel vapor leaks.

Emissions Testing 52

Emissions Testing Check Engine Light Mechanic Engineering 52

RepairSmith

SEPTEMBER 24, 2024

In contrast, electronic regulators are more complex and costly, using sensors and the engine control unit (ECU) to regulate fuel pressure. Illuminated check engine light : A faulty fuel pressure regulator will cause an imbalance in the engine’s air-fuel ratio, affecting combustion.

Check Engine Light 52

Check Engine Light Engineering Mechanic Auto Repair 52

RepairSmith

OCTOBER 8, 2024

Type of EGR valve : There are two types of EGR valves — electronic and mechanical. Electronic valves are usually more expensive to replace because they have more complex components and electronic controls. Repair complexity: In some cars, replacing an EGR valve takes less than an hour, but in others, it might be harder to reach.

IT 52

IT Engineering Electronics Mechanic 52

RepairSmith

OCTOBER 28, 2024

Signs You Need a Fuel Tank Pressure Sensor Replacement Watch out for these telltale symptoms that your fuel tank pressure sensor might be failing: Illuminated check engine light : Your check engine light activating is often one of the first signs of a failing fuel tank pressure sensor.

IT 52

IT Check Engine Light Auto Repair Shop Engineering 52

RepairSmith

SEPTEMBER 28, 2023

This imbalance hinders the engine’s ability to achieve proper combustion, making it challenging to start the car. Failed Emissions Test Incomplete combustion can result in higher levels of unburned hydrocarbons and carbon monoxide in the exhaust. These increased pollutants can lead to a failed emissions test.

Engineering 52

Engineering Emissions Testing Mechanic Electricity 52